Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1989-08-29
1992-02-04
Huppert, Michael S.
Dispensing
With discharge assistant
Insertable cartridge or removable container
222390, 401174, B65D 8854
Patent
active
050853520
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
This invention relates in general to a dispenser or an extruding device of the type which engages and rotates a male screw member relative to a female screw member so that the male screw member can be advanced and a content, solid or fluid, stored in a container can be extruded or discharged for use. Examples of the content include cosmetics such as a makeup foundation, an eye-shadow, a lip color, etc., writing materials such as a crayon, a pastel crayon, ink, India ink, etc., machine oil, a paste, seasonings, and so forth.
BACKGROUND OF THE INVENTION
A typical example of the dispensers for dispensing the materials described above is a syringe. Such dispensers are known in various other fields such as cosmetics, writing instruments, and the like.
Various dispensing methods of the contents are also known. As one of the methods of classification, they can be divided into the group which advances a male screw member on the basis of force or rotation and the group which does not use a screw. In accordance with the former, the male screw member is meshed with a female screw member formed in a predetermined length and is rotated so as to advance the male screw member. The present invention relates to the former, while an ordinary syringe is an example of the latter.
In comparison with the latter, the former which advances the male screw member on the basis of force of rotation is more advantageous in that the quantity of the content which is dispensed can be controlled and stabilized more easily. However, the structure often gets complicated, and this results in difficulty of assembly. Assembly of a really satisfactory dispenser is not so easy. If the assembly cannot regulate the advance of the male screw member, for example, unnecessary discharge of the content will develop when the dispenser is out of use. Extrusion of the content by the male screw member cannot be effected smoothly unless its movement in the axial direction is controlled. Therefore, the assembly must take this factor into consideration, too.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a dispenser which has a mechanical portion for dispensing the content as a unitary assembly independently of a container, which permits an easy assembly with a container having an arbitrary shape as the mating part, even by an amateur.
It is another object of the present invention to provide a male screw member advancing for dispensing the content which is able to release its engagement with a female screw member. More specifically, the female screw member consists of a plurality of female screw plates so that the diameter of the female screw member as a female screw can be changed variously. According to this structure, it becomes easy to carry out the assembly which can very easily change the advancing position of the male screw member.
It is still another object of the present invention to provide a structure which permits the end portion of a content storage portion of the container to determine the dispensing direction of the content by the male screw member More specifically, this can be accomplished by providing the female screw member with radial play or looseness relative to a casing for facilitating assembly.
In the case of a container which is a cartridge removably fitted into a main body, it is still another object of the present invention to provide a fitting member which makes it possible to directly fit the female screw member to the rear end portion of the cartridge. By this structure, assembly can be made easily so that the female screw member advances smoothly.
In the case of a container which is a cartridge removably fitted into the main body, it is still another object of the present invention to provide a fitting member wherein a main body includes mutually separable front and rear tubular shafts, the cartridge is fitted to the front tubular shaft from its back, a male screw member and a female screw member meshing with the male screw member are disposed on the rear sha
REFERENCES:
patent: 1362937 (1920-12-01), Grace
patent: 2309861 (1943-02-01), Mureau
patent: 3002517 (1961-10-01), Pitton
patent: 3756730 (1973-09-01), Spatz
patent: 4595124 (1986-06-01), Duval et al.
Nagaki Takeshi
Sasaki Toshiyuki
Bomberg Kenneth
Huppert Michael S.
Pentel Kabushiki Kaisha
LandOfFree
Dispenser for discharging material and having relatively rotatab does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dispenser for discharging material and having relatively rotatab, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispenser for discharging material and having relatively rotatab will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-343024